Patent · US Active

Crystal form of pyrroloquinoline quinone sodium salt and preparation method and use thereof

US10364244B2 · kind B2 · utility

1Cited by

0References

6Claims

0Family size

Assignee

Zhejiang Hisun Pharmaceutical Co., Ltd. · CN

Inventors

Zhiqing Yang · Taizhou City, CN
Liang Zhang · Sichuan, CN
Xiangyang Zhang · Longbeilingcun, CN
Zhenjuan SHI · Taizhou City, CN
Min Zhao · Shanghai, CN
Hongying Luo · Taizhou City, CN

Key dates

Filing date	Sep 14, 2016
Grant date	Jul 30, 2019
Priority date	—
Expiry date	Sep 14, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07B2200/13
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Provided are crystal forms I, II, III and IV of a pyrroloquinoline quinone sodium salt and a preparation method thereof. Also provided are a pharmaceutical composition, a cosmetic composition, a functional food or a nutritional agent containing the above-mentioned crystal forms. The crystal forms have excellent properties in terms of solubility, crystal stability, hygroscopicity and the like.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.